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PostProcessing: Add layered stereoscopy support.

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This commit is contained in:
Jules Blok
2014-10-22 13:02:28 +02:00
parent 81e9004679
commit c64486075d
4 changed files with 44 additions and 15 deletions
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24
Source/Core/VideoBackends/OGL/PostProcessing.cpp
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@ -36,7 +36,7 @@ static char s_vertex_shader[] =
" uv0 = rawpos * src_rect.zw + src_rect.xy;\n"
"}\n";
OpenGLPostProcessing::OpenGLPostProcessing()
OpenGLPostProcessing::OpenGLPostProcessing() : m_initialized(false)
{
CreateHeader();
@ -46,8 +46,6 @@ OpenGLPostProcessing::OpenGLPostProcessing()
glGenBuffers(1, &m_attribute_vbo);
glGenVertexArrays(1, &m_attribute_vao);
}
m_initialized = false;
}
OpenGLPostProcessing::~OpenGLPostProcessing()
@ -62,7 +60,7 @@ OpenGLPostProcessing::~OpenGLPostProcessing()
}
void OpenGLPostProcessing::BlitFromTexture(TargetRectangle src, TargetRectangle dst,
int src_texture, int src_width, int src_height)
int src_texture, int src_width, int src_height, int layer)
{
ApplyShader();
@ -79,6 +77,7 @@ void OpenGLPostProcessing::BlitFromTexture(TargetRectangle src, TargetRectangle
glUniform4f(m_uniform_src_rect, src.left / (float) src_width, src.bottom / (float) src_height,
src.GetWidth() / (float) src_width, src.GetHeight() / (float) src_height);
glUniform1ui(m_uniform_time, (GLuint)m_timer.GetTimeElapsed());
glUniform1i(m_uniform_layer, layer);
if (m_config.IsDirty())
{
@ -151,9 +150,9 @@ void OpenGLPostProcessing::BlitFromTexture(TargetRectangle src, TargetRectangle
}
glActiveTexture(GL_TEXTURE0+9);
glBindTexture(GL_TEXTURE_2D, src_texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glBindTexture(GL_TEXTURE_2D_ARRAY, src_texture);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
@ -167,7 +166,7 @@ void OpenGLPostProcessing::ApplyShader()
m_uniform_bindings.clear();
// load shader from disk
std::string default_shader = "void main() { SetOutput(Sample()); }";
std::string default_shader = "void main() { SetOutput(Sample()); }\n";
std::string code = "";
if (g_ActiveConfig.sPostProcessingShader != "")
code = m_config.LoadShader();
@ -195,6 +194,7 @@ void OpenGLPostProcessing::ApplyShader()
m_uniform_resolution = glGetUniformLocation(m_shader.glprogid, "resolution");
m_uniform_time = glGetUniformLocation(m_shader.glprogid, "time");
m_uniform_src_rect = glGetUniformLocation(m_shader.glprogid, "src_rect");
m_uniform_layer = glGetUniformLocation(m_shader.glprogid, "layer");
if (m_attribute_workaround)
{
@ -228,7 +228,7 @@ void OpenGLPostProcessing::CreateHeader()
// Shouldn't be accessed directly by the PP shader
// Texture sampler
"SAMPLER_BINDING(8) uniform sampler2D samp8;\n"
"SAMPLER_BINDING(9) uniform sampler2D samp9;\n"
"SAMPLER_BINDING(9) uniform sampler2DArray samp9;\n"
// Output variable
"out float4 ocol0;\n"
@ -238,16 +238,18 @@ void OpenGLPostProcessing::CreateHeader()
"uniform float4 resolution;\n"
// Time
"uniform uint time;\n"
// Layer
"uniform int layer;\n"
// Interfacing functions
"float4 Sample()\n"
"{\n"
"\treturn texture(samp9, uv0);\n"
"\treturn texture(samp9, float3(uv0, layer));\n"
"}\n"
"float4 SampleLocation(float2 location)\n"
"{\n"
"\treturn texture(samp9, location);\n"
"\treturn texture(samp9, float3(location, layer));\n"
"}\n"
"#define SampleOffset(offset) textureOffset(samp9, uv0, offset)\n"